In the report, Courtney Smith, Zach Smith's ex-wife, alleges her husband took pictures of himself receiving oral sex and having sex with a former Ohio State staff member in the coaches’ offices.

Courtney Smith also said Zach Smith took photos of his penis inside the coaches' office and again inside the White House when the Buckeyes visited after winning the College Football Playoff national championship in 2014. Receipts show Zach Smith ordered more than $2,200 worth of sex toys, male apparel and photography equipment between February 2015 and May 2015, according to the report.

McMurphy published a text exchange between him and Zach Smith’s attorney, Brad Koffel, in which McMurphy asked whether Ohio State coach Urban Meyer knew about the latest allegations. Koffel didn't respond to that question.

The report adds to a series of allegations involving the former Buckeyes assistant.

Zach Smith was fired July 23 but remains at the center of an investigation into Meyer by a panel appointed by the Ohio State University Board of Trustees.

Smith was arrested in 2009 while serving as an assistant coach for Meyer at Florida. He was accused of aggravated battery against Courtney Smith. The charges were later dropped because of insufficient evidence.

Zach Smith joined Meyer's staff at Ohio State in 2012. In 2015, Smith was involved in an incident with Courtney Smith that did not result in an arrest.

Meyer denied knowledge of the 2015 incident at Big Ten Media Days on July 24. On Aug. 3, Meyer said on Twitter that he reported the incident through the proper channels and protocol at Ohio State. That night, Zach Smith appeared in an interview on ESPN's "SportsCenter" and defended Meyer.

"If he loses his job, it's flat wrong," Smith said. "That's the guy who fired me. It would be a crime."

On Monday, the Toledo Blade reported Zach Smith was arrested on suspicion of operating a vehicle while intoxicated in connection with a 2013 incident.

The investigation is expected to conclude Sunday, the university announced Friday. The Board of Trustees will meet next week before Ohio State president Michael V. Drake makes a decision regarding Meyer's future with the football program.